FACTO: Add Arm U85 generated-test profile

Add an Arm U85 INT FACTO profile using the existing U85
compile spec and generated-case harness.
Quantize before export and use the Corstone-320
portable-ops runner when available.

Signed-off-by: Baris Demir <baris.demir@arm.com>
Change-Id: I9e7719bf4255c5a949f6753c7319ac9ac460c061

Author: bdemirb

backends/test/facto/test_facto.py

@@ -175,6 +175,8 @@ def _selected_arm_op_names() -> list[str]:
         return []
 
     return _selected_op_names()
+
+
 def _facto_config() -> _FactoConfig:
     max_cases = os.environ.get(FACTO_MAX_CASES_ENV)
     selected_op_names = _selected_op_names()

backends/test/facto/test_facto_arm.py

@@ -148,6 +148,21 @@ def _make_arm_u55_int_tester(
     )
 
 
+def _make_arm_u85_int_tester(
+    model: torch.nn.Module, example_inputs: tuple[Any, ...]
+) -> BackendTester:
+    return _ArmFactoTester(
+        model,
+        example_inputs,
+        compile_spec=arm_common.get_u85_compile_spec(
+            memory_mode="Dedicated_Sram_384KB"
+        ),
+        quantize_before_export=True,
+        qtol=1,
+        use_portable_ops=True,
+    )
+
+
 class _FactoTestsArmMixin:
     _tensor_constraints = ARM_TOSA_FP_TENSOR_CONSTRAINTS
 
@@ -235,6 +250,19 @@ def __init__(self, *args, **kwargs):
         super().__init__(_make_arm_u55_int_tester, *args, **kwargs)
 
 
+@unittest.skipUnless(
+    arm_common.corstone320_installed()
+    and arm_common.arm_executor_runner_exists("corstone-320", use_portable_ops=True),
+    "Did not find Corstone-320 FVP or executor_runner",
+)
+class FactoTestsArmU85_INT(_FactoTestsArmSerializedRunnerMixin, FactoTestsBase):
+    __test__ = True
+    _tensor_constraints = ARM_TOSA_INT_TENSOR_CONSTRAINTS
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(_make_arm_u85_int_tester, *args, **kwargs)
+
+
 class TestArmFactoTensorConstraintSelection(unittest.TestCase):
     def test_arm_shared_bases_are_not_unittest_cases(self) -> None:
         self.assertFalse(issubclass(_FactoTestsArmMixin, unittest.TestCase))
@@ -336,6 +364,7 @@ def test_vgf_serialized_runner_requires_converter_and_runtime(self) -> None:
     FactoTestsArmVGF_FP._generate_test(op_name)
     FactoTestsArmVGF_INT._generate_test(op_name)
     FactoTestsArmU55_INT._generate_test(op_name)
+    FactoTestsArmU85_INT._generate_test(op_name)
 
 if _generated_facto_tests_enabled():
     if not FACTO_AVAILABLE: